Mark - Could you elaborate a bit more on what you mean by  "resolution
of the timestamps for the log messages"? If you are referring to the
log4j latency (https://logging.apache.org/log4j/2.x/manual/async.html#Latency),
it is in microseconds.

If it has anything to do with the logger why is it happening on thread
switch only and is so consistent? In your opinion what is a good way
to monitor or measure the performance of tomcat websocket message
processing?

Cheers

Farzad

On Fri, Oct 30, 2015 at 3:16 AM, Mark Thomas <ma...@apache.org> wrote:
> On 30/10/2015 00:03, Farzad Panahi wrote:
>> Hi,
>>
>> I am using tomcat 8.0.23 to terminate my websocket connections. I was
>> looking at my trace logs and noticed that when tomcat worker thread
>> responsible for processing websocket messages switches to a different
>> thread, there is about 80ms delay.
>
> No there isn't. There is about an 80ms resolution of the timestamps for
> the log messages.
>
> Mark
>
>
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